Improvement in blowers for lamps



G. A. JONES.

BLOWERS FOR LAMPS.

Patented July 4,1876.

WITNESS N. PETERS, PHqTo-UTHUGRAPHER. WASHINGTON 0 c.

UNITED STATES PATENT OFFICE.

GEORGE A. JONES, OF BRISTOL, CONNECTICUT.

IMPROVEMENT IN BLOWERS FOR LAMPS.

Specification forming part of Letters Patent No. 179,413, dated July 4,1876 application filed J nne 2, 1876.

To all whom it may concern:

Be it known that I, GEORGE A. JONES, of Bristol, in the county ofHartford and State of Connecticut, have invented certain new and usefulImprovements in Blowers for Lamps; and I do hereby declare the followingto be a full, clear, and exact description of the invention, such aswill enable others skilled in the art to which it pertains to make anduse it, reference being had to the accompanying drawings, which formpart of this specification.

My invention relates to an improvement in blowers for lamps.

Heretofore the movements in lamp-blowers have been constructed to beactuated by a spring, combined with the winding-arbor, as in ordinaryclock-movements, and in practice the blower has been found to bedefective, for the reason that when the spring is first wound up it iscapable of lifting a weight of from twelve to fifteen pounds, and it isthen of sutficient strength to impart suflicient velocity to the fan tofurnish the necessary amount of oxygen to the flame of thelamp toproduce a clear and steady white flame without the use of alamp-chimney. When the spring has partly unwound its strength is reducedto such an extent that it is only capable of lifting from six to eightpounds, and in this condition the fan,is not impelled with sufficientforce to furnish the required amount of oxygen to the flame; hence theflame becomesunsteady, and gradually decreases in size and brilliancy,owing to the varying force of the spring as it unwinds upon thewindingarbor.

The object of my invention is to obviate the defects above noted, and tothat end my invention consists in the combination, with thewinding-arbor, of a blower for lamps of a a metallic ribbon, one end ofwhich is artached to the windingarbor, while to its outer or free end arihg or hook is secured for the attachment of a weight, whereby the fanis impelled by a constant force, and thus is enabled to furnish anydesired amount of oxygen to the flame throughout the running time of theblower.

In the accompanying drawings, wherein like letters designate like parts,Figure 1 shows the lamp-movement with my improvement combined therewith.Fig. 2 is a plan view of the device, and Fig. 3 represents theWinding-drum.

i A A represent the frames, within which is journaled the winding-arborB, to which is rigidly secured the Winding-drum C, provided with flangesD I), at a sufficient distance apart to allow the thin metallic ribbonE, preferably made of brass, to wind upon the drum between said disks.The inner end of the ribbon E is secured to the periphery of the drum C,while the ring I, or any equivalent device, is secured to the free endof the ribbon, and serves as a means for the attachment of a Weight tosaid metallic ribbon.

A ratchet-wheel is firmly secured to the Winding-arbor or to the disk A,as may be found most expedient in practice, and to said ratchet-wheelthe main wheel H is locked in one direction by means of a spring-pawl.

It is designed to attach a weight of about twenty-five pounds to thefree end of the metallic'ribbon E, and the same may be raised by windingthe movement in the ordinary manner.

As the metallic ribbon, which is formed of very thin material, isdisposed about the periphery of the drum, the weight, in its de-' scent,will impart a constant and steady power to actuate the fan, as thedecrease in leverage on the winding-drum is hardly perceptible, owing tothe thinness of the metallic ribbon E.

While the initial cost of the power attachment is considerably less thanthat of the spring, the ribbon is unafl'ected by changes of temperature,it is of greater durability, and it efiects a marked improvement in theresult, as the lamp will afford a steady brilliant white flame duringthe complete running time of the blower.

Having fully described my invention, what I claim as new, and desire tosecure by Letters Patent, is-

The combination, with the winding-arbor, of a blower for lamps, of awinding-drum, and a thin metallic ribbon, constructed for the at achmentof a weight to its outer or free end, substantially as and for thepurpose GEORGE A. JONES.

Witnesses MILES L. PEoK, HENRY A. SEYMOUR.

